<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>动态组件之Tab切换</title>
  <style lang="">
    .tab-button {
      padding: 6px 10px;
      border-top-left-radius: 3px;
      border-top-right-radius: 3px;
      border: 1px solid #ccc;
      cursor: pointer;
      background: #f0f0f0;
      margin-bottom: -1px;
      margin-right: -1px;
    }
    .tab-button:hover {
      background: #e0e0e0;
    }
    .tab-button.active {
      background: #e0e0e0;
    }
    .tab {
      border: 1px solid #ccc;
      padding: 10px;
    }
  </style>
  <script src="https://cdn.bootcss.com/vue/2.5.16/vue.js"></script>
</head>
<body>
  <div id="tab-demo" class="demo">
    <button
      v-for="tab in tabs"
      :key="tab"
      :class="['tab-button', { active: currentTab === tab}]"
      @click="currentTab = tab"
    >{{ tab }}</button>
    <component
      :is="currentTabComponent"
      class="tab">
    </component>
  </div>
  
  <script>
    Vue.component('tab-home', {
      template: '<div>Home component</div>'
    })
    Vue.component('tab-posts', {
      template: '<div>Posts component</div>'
    })
    Vue.component('tab-archive', {
      template: '<div>Archive component</div>'
    })

    new Vue({
      el: '#tab-demo',
      data: {
        currentTab: 'Home',
        tabs: ['Home', 'Posts', 'Archive']
      },
      computed: {
        currentTabComponent: function () {
          return 'tab-' + this.currentTab.toLowerCase()
        }
      }
    })
  </script>
</html>